Toronto's earliest November snowfall in decades sets 2025 record

Toronto's Earliest November Snowfall in Decades Sets 2025 Record

Toronto experienced its earliest significant snowfall in decades over the weekend of November 2025, with snow covering Southern Ontario and the Greater Toronto Area (GTA). A rare early-season storm brought winter conditions, resulting in notable snow accumulations.

Historical Context and Snowfall Data

The last time Toronto had a double-digit snowfall in November was on November 30, 1987, when more than 12 cm of snow fell across the city. By Monday morning, November 10, 2025, most of Toronto had received over 5 cm of snow, marking the earliest such accumulation at Pearson International Airport since October 22, 1969.

Environment Canada Warning and Regional Impact

Environment Canada issued a special weather statement ahead of the storm, predicting widespread snowfall across Southern Ontario, from London to Ottawa. The storm dropped between 2 and 10 cm of snow across the region, with downtown Toronto seeing lighter amounts than the northern parts of the GTA.

Typical Snowfall Patterns

Normally, Toronto’s first major snowfall occurs later in the season. Long-term climate data shows that the average date for reaching 5 cm of snow at Pearson Airport is December 12, and the median date for accumulating 10 cm is even later.

Historical records show that snowfalls in November in Toronto happen occasionally, but heavy accumulations like this are uncommon.

Author’s summary: Toronto's early November 2025 snowfall broke records, arriving weeks ahead of usual patterns and highlighting the rarity of such heavy early-season snow in the area.

CityNews Toronto — 2025-11-10